> [-Wmissing-sysroot] > :info:build clang: warning: no such sysroot directory: > '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk' I had the same errors with poppler. I fixed it by copying the MacOSX10.14.sdk from Xcode 10 into my Xcode 11 installation. -Aaron